Low-latency, Scalable, DeFi with Zef

Zef [3] was recently proposed to extend the low-latency, Byzantine-Fault Tolerant (BFT) payment protocol FastPay [1] with anonymous coins. This report explores further extensions of FastPay and Zef beyond payments. We start by off-chain assets (e.g. NFTs) in Section 2. We introduce the idea of on-demand BFT consensus instances throught the example of atomic swaps between account owners in Section 3.